Resolve de-duplication tasks

Resolve de-duplication tasks

Resolve de-duplication tasks

When
the instance encounters duplicate CIs during identification and reconciliation, it groups
each set of duplicate CIs into a de-duplication task for review. Use de-duplication tasks to
track the duplicate CIs until they can be resolved. A large number of duplicate CIs might be
due to weak identification rules.

About this task

De-duplication tasks provide details about the duplication, including a list of all
the duplicate CIs and the internal payload used during the identification process.
Review the details of each duplicate CI in the task and the data that was used to
determine that the CI is a duplicate.

If the duplicate CI is a dependent CI, then you can view the details of the dependent
relationship, the Depend on CI, and any relation qualifier chain. If the dependent
CI has a lookup table, then you can see the details of the respective lookup
table.

Skip duplication

Processing
of sets of duplicate CIs depends on the system properties
glide.identification_engine.skip_duplicates
(set to true by default) and
glide.identification_engine.skip_duplicates.threshold
(set to 5 by default), and on the number of duplicate CIs in a set.

If
glide.identification_engine.skip_duplicates
is true, and the number of duplicate CIs is less than the
threshold specified by
glide.identification_engine.skip_duplicates.threshold,
then the oldest of the duplicate CIs is picked as a match and
gets updated. The rest of the duplicate CIs are tagged as
duplicates by setting the cmdb_ci's
discovery_source field as
'Duplicate'.

If
glide.identification_engine.skip_duplicates
is false, then matching of duplicate CIs fails with an error,
and none of the duplicate CIs is updated.

Payload that was used in the identification process,
during which the de-duplication task was generated.

Description

Full description for the task.

Work notes

Notes to keep track of the decisions and steps of
resolving the task.

Priority

Task priority.

State

State of the de-duplication task as it progresses through
resolution.

In the Duplicate Audit Results section, click a CI in the Duplicate
CI column to view the details about how the CI was identified as
a duplicate.

Table 2. Duplicate Audit Results list columns

Column

Description

Duplicate CI

Reference to the duplicate CI.

Note: This field is a
document ID type, which means that it can reference any
record on any table. If the referenced CI is deleted as
part of resolving duplicate tasks, then this field will
be empty.

Depend on

If the duplicate CI is a dependent CI, then this field
displays the depend on CI.

Qualifier chain

If the duplicate CI is a dependent CI, then this field
shows a list of sys_ids of qualifier CIs, if it
exists.

Follow on task

The associated de-duplication task that captures the
duplication.

Relationship

For a duplicate CI that is a dependent CI, this field
shows the relationship between the duplicate CI and depend
on CI.

What to do next

Based on your analysis of de-duplication tasks, you can determine which CI should
remain active and which of the duplicate CIs in the Duplicate Audit Results records
are stale or incorrect. Determine if it is appropriate to delete or inactivate any
of these CIs.